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530257744 = 24172298513
BaseRepresentation
bin11111100110110…
…001011101010000
31100221202212212201
4133212301131100
52041221221434
6124341132544
716066054642
oct3746613520
91327685781
10530257744
11252353545
121296ba154
1385b1a4a3
14505d0892
1531843614
hex1f9b1750

530257744 has 40 divisors (see below), whose sum is σ = 1092686760. Its totient is φ = 248414208.

The previous prime is 530257733. The next prime is 530257751. The reversal of 530257744 is 447752035.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 428490000 + 101767744 = 20700^2 + 10088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58032 + ... + 66544.

It is an arithmetic number, because the mean of its divisors is an integer number (27317169).

Almost surely, 2530257744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530257744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546343380).

530257744 is an abundant number, since it is smaller than the sum of its proper divisors (562429016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

530257744 is a wasteful number, since it uses less digits than its factorization.

530257744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8767 (or 8761 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 37.

The square root of 530257744 is about 23027.3260280042. The cubic root of 530257744 is about 809.3983969603.

The spelling of 530257744 in words is "five hundred thirty million, two hundred fifty-seven thousand, seven hundred forty-four".

Divisors: 1 2 4 8 16 17 34 68 136 229 272 458 916 1832 3664 3893 7786 8513 15572 17026 31144 34052 62288 68104 136208 144721 289442 578884 1157768 1949477 2315536 3898954 7797908 15595816 31191632 33141109 66282218 132564436 265128872 530257744